The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 25, 2011
Filed:
Nov. 01, 2007
Stephen M. Cicala, Dearborn Heights, MI (US);
Cristina Ike, Ferndale, MI (US);
Charles W. Suter, South Lyon, MI (US);
Joseph Kucharski, Livonia, MI (US);
Bradley D. Riedle, Northville, MI (US);
Dave M. Dillon, Dearborn Heights, MI (US);
Michael Polk, Dearborn, MI (US);
Stephen M. Cicala, Dearborn Heights, MI (US);
Cristina Ike, Ferndale, MI (US);
Charles W. Suter, South Lyon, MI (US);
Joseph Kucharski, Livonia, MI (US);
Bradley D. Riedle, Northville, MI (US);
Dave M. Dillon, Dearborn Heights, MI (US);
Michael Polk, Dearborn, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
In a motor vehicle powertrain that includes a diesel engine, a particulate filter and a torque converter, a method for correcting an indicated engine output torque includes estimating a magnitude of torque being transmitted from the engine to the torque converter while regenerating the particulate filter, determining a reference magnitude of current engine torque being produced while regenerating the particulate filter, determining a torque error from a difference between the estimated magnitude and the reference magnitude, recording the torque error, determining a current torque error from the recorded torque error using a current engine speed and a current reference engine torque as indices to the recorded engine toque error, producing a corrected engine torque from the sum of the current torque error and the current reference engine torque, and using the corrected engine torque to control operation of the transmission.